How to develop a Simulink model to handle fault, to set the output if fault sustains after certain duration and reset it if fault resets for certain duration using square wave.

The output should follow the input if fault(set or reset) remains for x seconds.

Answer 1

[Ishaan]

Hey Gowtham,

I observe that you intend to develop a Simulink model that handles faults, and the output is dependent on whether the fault signal remains in a state for a particular time duration.

To implement this, you can focus on a few core ideas:

1. Fault Detection: Start by using a square wave generator to simulate faults. This will help you define when a fault occurs (e.g., high for fault, low for no fault).
2. Timing the Fault: Consider how you might track the duration of a fault. You can implement a simple timer using “Integrator block” inside "Triggered/Enabled Subsystem" to help you measure how long a fault condition lasts.
3. Responding to Faults: Use logic to set or reset the output based on the fault's duration. An "If" block can help you define conditions: change the output if the fault persists for a specified duration and reset it when the fault clears for a few seconds. This ensures your output only changes when the condition is sustained or reset for the required time.

With these steps, you should be able to build the fault-handling model. For more detailed guidance and practice, please refer to the Simulink Onramp course.

https://matlabacademy.mathworks.com/details/simulink-onramp/simulink